Year	Number
2004-01-01	351582
2005-01-01	454606
2006-01-01	600134
2007-01-01	507766
2008-01-01	554490
2009-01-01	570470
2010-01-01	621726
2011-01-01	663457
2012-01-01	654420
2013-01-01	701453
2014-01-01	797124
2015-01-01	883288
2016-01-01	996966
2017-01-01	1115408